This is very important to know the real meaning of the car engine P1228 Code and know the process of solving the car engine. The powertrain is problematic and this problem can be fixed properly. The automobile dictionary meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 2 for Accelerator Pedal Position (APP) Sensor 1 Performance. 2 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 8 for PCM Stack Overrun. You should not fix the car engine improperly. You must give the car to automobile engineer for solving the car engine problem.